@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;600;700&family=Noto+Sans+JP:wght@300;400;500;600&display=swap');

:root {
  --tn-bg: #FFFDF8;
  --tn-dark: #2C2C2C;
  --tn-accent: #D4A574;
  --tn-light-gray: #F0EDE8;
  --tn-card: #FFFFFF;
  --tn-text: #3A3A3A;
  --tn-text-light: #6B6B6B;
  --tn-border: #E0DCD6;
  --tn-font-heading: 'Noto Serif JP', serif;
  --tn-font-body: 'Noto Sans JP', sans-serif;
  --tn-shadow-sm: 0 1px 3px rgba(44,44,44,0.06);
  --tn-shadow-md: 0 4px 12px rgba(44,44,44,0.08);
  --tn-radius: 4px;
  --tn-max-width: 1140px;
  --tn-transition: 0.25s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--tn-font-body);
  background: var(--tn-bg);
  color: var(--tn-text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--tn-accent);
  text-decoration: none;
  transition: color var(--tn-transition);
}

a:hover {
  color: var(--tn-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--tn-font-heading);
  color: var(--tn-dark);
  line-height: 1.4;
  font-weight: 600;
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }

.container {
  max-width: var(--tn-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.tn-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,253,248,0.96);
  border-bottom: 1px solid var(--tn-border);
  backdrop-filter: blur(6px);
}

.tn-header-inner {
  max-width: var(--tn-max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.tn-logo {
  font-family: var(--tn-font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--tn-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tn-logo i {
  color: var(--tn-accent);
  font-size: 1.3rem;
}

.tn-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.tn-nav a {
  color: var(--tn-text);
  font-size: 0.9rem;
  font-weight: 400;
  position: relative;
  padding: 4px 0;
}

.tn-nav a:hover {
  color: var(--tn-dark);
}

.tn-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--tn-accent);
  transition: width var(--tn-transition);
}

.tn-nav a:hover::after {
  width: 100%;
}

.tn-nav-dropdown {
  position: relative;
}

.tn-nav-dropdown-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.tn-nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: -12px;
  min-width: 280px;
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  box-shadow: var(--tn-shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--tn-transition);
  padding: 8px 0;
  z-index: 100;
}

.tn-nav-dropdown:hover .tn-nav-dropdown-menu,
.tn-nav-dropdown.open .tn-nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.tn-nav-dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.85rem;
  color: var(--tn-text);
  border-bottom: none;
}

.tn-nav-dropdown-menu a:hover {
  background: var(--tn-light-gray);
  color: var(--tn-dark);
}

.tn-nav-dropdown-menu a::after {
  display: none;
}

.tn-btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--tn-accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--tn-radius);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background var(--tn-transition), transform var(--tn-transition);
  border: none;
  cursor: pointer;
  font-family: var(--tn-font-body);
}

.tn-btn-cta:hover {
  background: #C4945E;
  color: #fff;
  transform: translateY(-1px);
}

.tn-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--tn-accent);
  padding: 10px 20px;
  border-radius: var(--tn-radius);
  font-size: 0.88rem;
  font-weight: 500;
  border: 1.5px solid var(--tn-accent);
  transition: all var(--tn-transition);
  cursor: pointer;
  font-family: var(--tn-font-body);
}

.tn-btn-outline:hover {
  background: var(--tn-accent);
  color: #fff;
}

.tn-hero {
  margin-top: 64px;
  min-height: 540px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(44,44,44,0.7), rgba(44,44,44,0.5)), url('../media/hero-toshin-desk.jpg') center/cover no-repeat;
  color: #fff;
}

.tn-hero-inner {
  max-width: var(--tn-max-width);
  margin: 0 auto;
  padding: 60px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  width: 100%;
}

.tn-hero-text h1 {
  color: #fff;
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 700;
}

.tn-hero-text p {
  font-size: 1.05rem;
  line-height: 1.9;
  opacity: 0.92;
  margin-bottom: 28px;
}

.tn-hero-text .tn-btn-cta {
  background: var(--tn-accent);
  color: #fff;
}

.tn-hero-text .tn-btn-cta:hover {
  background: #E0B888;
}

.tn-hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.tn-hero-visual img {
  border-radius: 6px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  max-height: 340px;
  object-fit: cover;
}

.tn-section {
  padding: 72px 0;
}

.tn-section-light {
  background: var(--tn-light-gray);
}

.tn-section-header {
  text-align: center;
  margin-bottom: 48px;
}

.tn-section-header h2 {
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.tn-section-header h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--tn-accent);
  margin: 12px auto 0;
}

.tn-section-header p {
  color: var(--tn-text-light);
  font-size: 0.95rem;
  max-width: 640px;
  margin: 0 auto;
}

.tn-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.tn-about-text h2 {
  margin-bottom: 16px;
}

.tn-about-text p {
  margin-bottom: 16px;
  color: var(--tn-text);
}

.tn-about-img img {
  border-radius: 6px;
  border: 1px solid var(--tn-border);
}

.tn-mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.tn-mission-img img {
  border-radius: 6px;
  border: 1px solid var(--tn-border);
}

.tn-mission-text h2 {
  margin-bottom: 16px;
}

.tn-mission-text p {
  margin-bottom: 12px;
}

.tn-article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.tn-article-card {
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  overflow: hidden;
  transition: box-shadow var(--tn-transition), transform var(--tn-transition);
}

.tn-article-card:hover {
  box-shadow: var(--tn-shadow-md);
  transform: translateY(-2px);
}

.tn-article-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.tn-article-card-body {
  padding: 20px;
}

.tn-article-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  font-family: var(--tn-font-heading);
}

.tn-article-card-body p {
  font-size: 0.88rem;
  color: var(--tn-text-light);
  margin-bottom: 14px;
  line-height: 1.7;
}

.tn-article-card-body .tn-card-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--tn-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tn-article-card-body .tn-card-link:hover {
  color: var(--tn-dark);
}

.tn-achievements {
  background: var(--tn-dark);
  color: #fff;
  padding: 60px 0;
}

.tn-achievements-inner {
  max-width: var(--tn-max-width);
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.tn-achievements h2 {
  color: #fff;
  margin-bottom: 36px;
}

.tn-achievements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 24px;
}

.tn-achievement-item {
  padding: 28px 20px;
}

.tn-achievement-num {
  font-family: var(--tn-font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--tn-accent);
  margin-bottom: 8px;
}

.tn-achievement-label {
  font-size: 0.95rem;
  opacity: 0.9;
}

.tn-achievements-note {
  font-size: 0.78rem;
  opacity: 0.55;
  margin-top: 12px;
}

.tn-advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.tn-advantage-card {
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  padding: 28px;
  transition: box-shadow var(--tn-transition);
}

.tn-advantage-card:hover {
  box-shadow: var(--tn-shadow-md);
}

.tn-advantage-card i {
  font-size: 1.6rem;
  color: var(--tn-accent);
  margin-bottom: 12px;
  display: block;
}

.tn-advantage-card h4 {
  margin-bottom: 8px;
  font-family: var(--tn-font-heading);
}

.tn-advantage-card p {
  font-size: 0.9rem;
  color: var(--tn-text-light);
  line-height: 1.7;
}

.tn-closing-cta {
  background: var(--tn-light-gray);
  text-align: center;
  padding: 64px 0;
}

.tn-closing-cta h2 {
  margin-bottom: 12px;
}

.tn-closing-cta p {
  color: var(--tn-text-light);
  margin-bottom: 24px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.tn-closing-cta .tn-btn-cta {
  margin: 0 6px;
}

.tn-footer {
  background: var(--tn-dark);
  color: rgba(255,255,255,0.8);
  padding: 48px 0 24px;
}

.tn-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.tn-footer-col h5 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 16px;
  font-family: var(--tn-font-heading);
}

.tn-footer-col p,
.tn-footer-col a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  line-height: 2;
}

.tn-footer-col a:hover {
  color: var(--tn-accent);
}

.tn-footer-col .tn-footer-icon {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.tn-footer-col .tn-footer-icon i {
  color: var(--tn-accent);
  font-size: 0.9rem;
  width: 18px;
  text-align: center;
}

.tn-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.5;
}

.tn-breadcrumb {
  padding: 20px 0;
  font-size: 0.85rem;
  color: var(--tn-text-light);
  margin-top: 64px;
}

.tn-breadcrumb a {
  color: var(--tn-text-light);
}

.tn-breadcrumb a:hover {
  color: var(--tn-accent);
}

.tn-breadcrumb span {
  margin: 0 6px;
  opacity: 0.4;
}

.tn-page-header {
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--tn-border);
}

.tn-page-header h1 {
  margin-bottom: 8px;
}

.tn-page-header p {
  color: var(--tn-text-light);
  font-size: 0.95rem;
}

.tn-content-section {
  padding: 48px 0;
}

.tn-prose {
  max-width: 760px;
  margin: 0 auto;
}

.tn-prose h2 {
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--tn-border);
}

.tn-prose h3 {
  margin-top: 28px;
  margin-bottom: 12px;
}

.tn-prose p {
  margin-bottom: 16px;
  line-height: 1.9;
}

.tn-prose ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

.tn-prose li {
  margin-bottom: 6px;
  line-height: 1.8;
}

.tn-prose .tn-article-meta {
  font-size: 0.85rem;
  color: var(--tn-text-light);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--tn-border);
}

.tn-article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--tn-border);
}

.tn-article-nav a {
  display: block;
  padding: 20px;
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  transition: box-shadow var(--tn-transition);
}

.tn-article-nav a:hover {
  box-shadow: var(--tn-shadow-md);
}

.tn-article-nav-label {
  font-size: 0.78rem;
  color: var(--tn-text-light);
  margin-bottom: 4px;
}

.tn-article-nav-title {
  font-family: var(--tn-font-heading);
  font-size: 0.95rem;
  color: var(--tn-dark);
}

.tn-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.tn-contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.tn-contact-info-item i {
  color: var(--tn-accent);
  font-size: 1.2rem;
  margin-top: 3px;
}

.tn-contact-info-item div {
  font-size: 0.92rem;
  line-height: 1.7;
}

.tn-contact-info-item strong {
  display: block;
  margin-bottom: 2px;
  font-size: 0.82rem;
  color: var(--tn-text-light);
  font-weight: 500;
}

.tn-form-card {
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  padding: 32px;
}

.tn-form-group {
  margin-bottom: 20px;
}

.tn-form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--tn-dark);
}

.tn-form-group input,
.tn-form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  font-size: 0.9rem;
  font-family: var(--tn-font-body);
  color: var(--tn-text);
  background: var(--tn-bg);
  transition: border-color var(--tn-transition);
}

.tn-form-group input:focus,
.tn-form-group textarea:focus {
  outline: none;
  border-color: var(--tn-accent);
}

.tn-form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.tn-map-section {
  margin-top: 48px;
}

.tn-map-container {
  position: relative;
  width: 100%;
  height: 420px;
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  overflow: hidden;
}

.tn-map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.tn-map-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 0.88rem;
}

.tn-list-item {
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: var(--tn-radius);
  padding: 24px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  align-items: center;
  transition: box-shadow var(--tn-transition);
}

.tn-list-item:hover {
  box-shadow: var(--tn-shadow-md);
}

.tn-list-item img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  border-radius: var(--tn-radius);
}

.tn-list-item-body h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.tn-list-item-body p {
  font-size: 0.88rem;
  color: var(--tn-text-light);
  margin-bottom: 10px;
}

.tn-list-item-body .tn-list-date {
  font-size: 0.8rem;
  color: var(--tn-text-light);
}

.tn-cookie-modal {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 360px;
  max-width: calc(100vw - 40px);
  background: var(--tn-card);
  border: 1px solid var(--tn-border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(44,44,44,0.15);
  z-index: 9999;
  padding: 24px;
  display: none;
}

.tn-cookie-modal.visible {
  display: block;
  animation: tnSlideUp 0.35s ease;
}

@keyframes tnSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.tn-cookie-modal h4 {
  font-size: 1rem;
  margin-bottom: 10px;
  font-family: var(--tn-font-heading);
}

.tn-cookie-modal p {
  font-size: 0.82rem;
  color: var(--tn-text-light);
  margin-bottom: 16px;
  line-height: 1.6;
}

.tn-cookie-modal p a {
  color: var(--tn-accent);
}

.tn-cookie-btns {
  display: flex;
  gap: 10px;
}

.tn-cookie-btns button {
  flex: 1;
  padding: 10px 16px;
  border-radius: var(--tn-radius);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--tn-font-body);
  transition: all var(--tn-transition);
  border: none;
}

.tn-cookie-accept {
  background: var(--tn-accent);
  color: #fff;
}

.tn-cookie-accept:hover {
  background: #C4945E;
}

.tn-cookie-reject {
  background: var(--tn-light-gray);
  color: var(--tn-dark);
  border: 1px solid var(--tn-border) !important;
}

.tn-cookie-reject:hover {
  background: var(--tn-border);
}

.tn-success-modal {
  position: fixed;
  inset: 0;
  background: rgba(44,44,44,0.4);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.tn-success-modal.visible {
  display: flex;
}

.tn-success-modal-inner {
  background: var(--tn-card);
  border-radius: 8px;
  padding: 40px;
  max-width: 400px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(44,44,44,0.2);
}

.tn-success-modal-inner i {
  font-size: 2.4rem;
  color: var(--tn-accent);
  margin-bottom: 16px;
}

.tn-success-modal-inner h4 {
  margin-bottom: 8px;
}

.tn-success-modal-inner p {
  font-size: 0.9rem;
  color: var(--tn-text-light);
}

.tn-mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--tn-dark);
  cursor: pointer;
}

.tn-legal-page {
  padding: 84px 0 60px;
}

.tn-legal-page .tn-prose {
  max-width: 800px;
}

.tn-legal-page h2 {
  margin-top: 40px;
}

.tn-footer-articles a {
  display: block;
  margin-bottom: 6px;
}

.tn-cookie-manage {
  font-size: 0.82rem;
  color: var(--tn-text-light);
}

.tn-cookie-manage:hover {
  color: var(--tn-accent);
}

@media (max-width: 900px) {
  .tn-hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .tn-hero-visual {
    display: none;
  }
  .tn-hero-text h1 {
    font-size: 1.8rem;
  }
  .tn-article-grid {
    grid-template-columns: 1fr 1fr;
  }
  .tn-about-grid,
  .tn-mission-grid,
  .tn-contact-grid {
    grid-template-columns: 1fr;
  }
  .tn-achievements-grid {
    grid-template-columns: 1fr 1fr;
  }
  .tn-advantages-grid {
    grid-template-columns: 1fr;
  }
  .tn-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .tn-list-item {
    grid-template-columns: 1fr;
  }
  .tn-list-item img {
    height: 160px;
  }
}

@media (max-width: 640px) {
  .tn-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--tn-card);
    border-bottom: 1px solid var(--tn-border);
    flex-direction: column;
    padding: 16px 24px;
    gap: 12px;
    box-shadow: var(--tn-shadow-md);
  }
  .tn-nav.active {
    display: flex;
  }
  .tn-mobile-toggle {
    display: block;
  }
  .tn-nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    display: none;
    min-width: auto;
    padding: 0 0 0 16px;
  }
  .tn-nav-dropdown.open .tn-nav-dropdown-menu {
    display: block;
  }
  .tn-article-grid {
    grid-template-columns: 1fr;
  }
  .tn-article-nav {
    grid-template-columns: 1fr;
  }
  .tn-footer-grid {
    grid-template-columns: 1fr;
  }
  .tn-hero {
    min-height: 420px;
  }
  .tn-hero-text h1 {
    font-size: 1.5rem;
  }
  .tn-map-container {
    height: 300px;
  }
  .tn-cookie-modal {
    width: calc(100vw - 24px);
    bottom: 12px;
    right: 12px;
  }
}